EBP's BS EN 124:2015 D400 Group 4 gully grating has been designed to provide optimum strength whilst maximising the available drainage area. Key Features: For use in a Group 4 Class D400 carriageway environment Complies fully with UK Highways Authority specification HA 104/09 Up to 2020cm2 waterway area All fully comply with BS EN 124:1994 and are Kitemarked by BSI Manufactured from strong and highly durable ductile iron Three point suspension on covers for non-rock stability